CA2023599C - Binding device with improved twisting head and binder equipped with such devices, in particular for binding coils of wire - Google Patents
Binding device with improved twisting head and binder equipped with such devices, in particular for binding coils of wireInfo
- Publication number
- CA2023599C CA2023599C CA002023599A CA2023599A CA2023599C CA 2023599 C CA2023599 C CA 2023599C CA 002023599 A CA002023599 A CA 002023599A CA 2023599 A CA2023599 A CA 2023599A CA 2023599 C CA2023599 C CA 2023599C
- Authority
- CA
- Canada
- Prior art keywords
- binding
- twisting head
- twisting
- binding device
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
- B65B13/24—Securing ends of binding material
- B65B13/28—Securing ends of binding material by twisting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
- B65B27/06—Bundling coils of wire or like annular objects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Package Frames And Binding Bands (AREA)
- Ropes Or Cables (AREA)
- Wire Processing (AREA)
Abstract
A binding device that comprises, on a frame, means for placing a flexible bond around an article to be bound, comprising guide members for bringing the two end lengths of the bond to cross over each other, and a head for twisting them placed at the rear of the said guide members and formed by a gripper mounted on the end of a rotary body. This binding device comprises means for guiding and driving the twisting head in translation, preferably constituted by a nut integral with the frame, in which is screwed a threaded portion of the body of the twisting head, mounted slidingly in a member for coupling to a means ensuring its rotation. The members for guiding the flexible bond are further withdrawable in synchronism with the translation of the twisting head.
Wire coil compacting and binding apparatus equipped with several of these binding devices arranged in a circle is also described.
Wire coil compacting and binding apparatus equipped with several of these binding devices arranged in a circle is also described.
Description
BINDING DEVICE WITH IMPROVED TWISTING HEAD
AND BINDER EQUIPPED WITH SUCH DEVICES, IN PARTICULAR FOR BINDING COILS OF WIRE
The present invention relates to a binding device.
The device has a frame associated with a supporting structure, to carry the item to be bound. There are means for placing a flexible bond around the item comprising guide members for bringing its two end lengths to cross each other. A head for twisting the bond is placed at the rear of the guide members and composed of a gripper mounted on the end of a rotary body.
Such binding devices are found on wire coil compacting and binding apparatus, in which they are distributed in a circle on a common support, rearwardly of the compacting unit.
One drawback of current wire coil compacting and binding apparatus is that, in each binding device, the twisting head, for constructional reasons, can only act in rotation on the flexible bond, and then at a great distance, in the order of 60 mm, from the coil of wire to be bound. While this may have no effect upon binding quality in the case of wire coils of high elasticity, which compensate for this twist after compacting, this is not the case when the wire is of increased diameter, which reduces the elasticity of the coil. The result is that the bonds around the coil are not tight enough and can slide along the coil, for example, during handling or transport. The coil may thus come undone.
The aim of the present invention is to remedy this drawback. Accordingly, the present invention is a binding device comprising a frame associated with a supporting structure for an article to be bound, means on the frame for placing a flexible bond around the article to be bound, the flexible bond including opposed end lengths, the means for placing the flexible bond comprising guide members having opposed front and rear ~
~r ends, the front ends being configured for bringing the two end lengths to cross over one another, and a twisting head for twisting the two end lengths, the twisting head being arranged at the rear of said guide members and being formed by a gripper and a rotary body, the gripper being mounted on the end of the rotary body, the binding device being characterized in that it comprises means for guiding and driving the twisting head in translation as it rotates, comprising a nut integral with the frame, a threaded portion being defined on the body of the twisting head, and being threadedly engaged with the nut such that rotation of the body generates axial movement of the body relative to both the nut and the frame, a coupling member surrounding a portion of the body such that the body is slidingly mounted in the coupling member, the coupling member being coupled to a means for ensuring its rotation, the said guide members of the flexible bond further being withdrawable in synchronism with the translation of the twisting head.
The twisting head can thus, during its rotation, advance in the direction of the wire coil to be bound, until it reaches a distance which, while it certainly still presents limitations in practice, is nonetheless sufficiently reduced (approximately halved) to ensure good quality, firm binding regardless of the elasticity of the coil of wire, even if the wire is obtained by rolling.
Advantageously, the coupling member is a toothed pinion retained around the body of the twisting head by an axially splined connection and engaging with a toothed driving wheel constituting the said rotating means.
Moreover, and according to another feature of the invention, the gripper is composed of two jaws articulated on the body of the twisting head, each being ~, ~, ~ _ 3 _ 2023599 extended, beyond its axis of articulation, by a rear heel, and further associated with a jack formed in the body with its rod pointing towards the heels of the jaws and ending in a head of a generally conical shape designed to engage between the latter, the heels of the jaws of the gripper being further urged towards one another in rest condition. There are thus provided simple means for actuating the gripper which do not, moreover, increase the overall dimensions of the binding device.
The members for guiding the flexible bond are preferably constituted by pivoting thread guide jaws crossing one another at an active position in the translation path of the twisting head and cyclically movable from the said path by swinging means.
The present invention also relates to an apparatus for binding articles of an annular shape, in particular to a wire coil compacting and binding apparatus, of the type comprising several binding subassemblies arranged in a circle on a common support. The binding subassemblies are constituted by binding devices as defined above.
In a preferred embodiment that considerably simplifies the control of the twisting heads of the different binding devices, the heads are orientated in the same direction with their axes substantially parallel to the central axis of the article to be bound and their coupling pinions engage with a common toothed driving wheel.
The present invention is illustrated, by way of example, in the drawings, wherein:
Figure 1 diagrammatically represents, in side view, a compacting and binding apparatus according to the invention;
.
4 20235~9 Figure 2 is a diagrammatic enlarged cross section along line II-II of Figure 1;
Figure 3 is a side view, in partial cross section, of a binding device according to the invention incorporated into the compacting and binding apparatus of Figures 1 and 2;
Figure 4 iæ a longitn~;nAl cross-sectional view along line IV-IV of Figure 3, of the twisting head of this binding device;
Figure 5 diagrammatically represents, in rear view, the system for controlling the different twisting heads of the bind devices of the compacting and binding apparatus;
Figures 6 and 7 are diagrams illustrating two phases in the operation of the binding device; and Figure 8 is an enlarged front view of the twisting head, in the direction of arrow A of Figure 4.
The compacting and binding apparatus shown in Figure 1 is composed of a compacting unit 1, followed by a binding unit 2. In a manner known per se, compacting unit 1 comprises a carriage 3 which, after receiving a cylindrical coil of wire for binding, formed at an upstream binding station, moves it and compresses it against an anvil 4, passing it round an axial mandrel 5 projecting in front of the anvil.
Rearwardly of anvil 4, binding unit 2 has four identical binding devices 6 which, as shown in Figure 2, are bolted at 6a, by their respective frames 7, to a face, turned towards anvil 4, of a common support 2a upon which they are arranged in a circle, at an angle of 90 to one another. Binding devices 6 are associated with respective binding thread supply reels 8. Devices 6 have a main work axis X parallel with axis Y of mandrel 5 and positioned in the prolongation of the wire coil reception space, defined between the latter and a corresponding lateral arm 9 that also projects in front of anvil 4.
The structure of one of binding devices 6, which is identical in all respects with that of the other three, will now be described with reference to Figures 3 and 4.
Figure 3 shows on the front face of the binding device, two thread guide jaws, 10, 11, slightly offset in a direction perpendicular to the plane of the drawing.
These thread guide jaws are provided with corresponding channels 10a, lla converging with one another towards anvil 4 until they cross. In addition, each thread guide jaw 10 or 11 is extended at the rear by a corresponding support arm 12 or 13 articulated at 14 or 15 on frame 7 about axes that are parallel with one another and perpendicular to the main axis X of the device. On each of these arms 12, 13, there is further articulated, at 16 and 17, a link 18, 19 - a long one for thread guide 10 and a short one for thread guide 11. The two links, 18, 19, point towards central axis Y of binding unit 2 and are articulated at 20 and 21 on a rocking lever 22, which is itself supported at its centre by a pin 23 pivoting in frame 7. At the rear of this pin 23, lever 22 has a protuberance 24 the end of which articulates on a pin 25 blocked between two circular flanges 26, 27 formed at the end of rod 28 of a jack 29 borne by support 2a. This jack 29, which is centered on the Y axis of the binding unit 2, is common to the four binding devices 6.
Consequently, when it is extended, it places and maintains the wire guide jaws 10, 11 of each device 6 in their active position as in Figure 3, via the respective mechanisms constituted by rocking lever 22 and links 18, 19 .
20235~9 Just behind the two thread guide jaws 10, 11 is located a twisting head 32, which will be described with reference to Figures 3, 4 and 8.
The rear portion of this twisting head 32 is a rotary body 33, retained by bearings 34, 35 having seals 34a, 35a, inside a bore 36 of frame 7, provided between the articulating arms of jaws 10, 11. Beyond front bearing 34, an extension 33a of body 33 bears a gripper 32a formed by two jaws 37, 38 articulated about parallel axes 39, 40 perpendicular to the axes of articulation 14, 15 of arms 12, 13 of the thread guide jaws. In their rest position represented in Figure 4, these jaws, 37, 38, are held slightly apart by return springs, not shown, acting between heels 37a, 38a, prolonging them beyond their axes of articulation 39, 40.
From Figure 3, it can further be seen that jaws 37, 38 have a rectangular shape so as to be housed, with minimum clearance, in a cut out portion 52 of matching shape provided in the rear face of the thread guide jaws 10, 11. Figures 3, 4 and 8 also show that, on their front faces and along their free edges 37b, 38b, jaws 37, 38 are each provided with an open channel, 37c or 38c.
These two channels slope to converge on the X axis of the twisting head in order so that, as shown in Figure 8, they are positioned respectively in alignment with channels lOa, lla of thread guide jaws 10, 11, when the two jaws 37, 38 are in their open position, shown in Figure 4.
Figure 4 further shows that, in its mid position, rotary body 33 of twisting head 32 has an externally threaded section 41 which is screwed into a fixed nut 42 integral, via a screw 42a, with the wall of bore 36. At its rear end, body 33 carries, via one or more axial splines 43, a pinion 44 (Figure 3). As can be seen from .~
_ 7 _ 2023599 Figure 2, as well as from the diagrammatic view of Figure 5, the four pinions 44 of twisting heads 32 of the four binding devices 6 engage, through intermediate pinions 45, with a common central toothed wheel 46 rotated by a hydraulic motor 47.
In the rotary body 33 of the twisting head, there is further provided a cavity, 48, of a hydraulic jack, whose rod 49, centered on the X axis, ends in a frustoconical head 50 turned towards the gap between heels 37a, 38a of the two jaws 37, 38.
The operation of binding unit 2 equipped with the above described binding devices 6 will now be explained.
With each of the binding devices 6 in the condition illustrated in Figure 4, a thin, flexible continuous binding thread F provided from one of the supply reels 8 and drawn by a motor driven pulley 30 mounted on frame 7 with its counter tension roller 30a engages in channel 38c of jaw 38 of the twisting head, and then in channel lla in alignment with thread guide jaw 11 so as to pass, upon emerging therefrom, round a section of the coil following guide grooves (not shown) formed in an opening of anvil 4, along the corresponding arm 9 and along the mandrel 5. The binding thread then returns, arriving at the second thread guide 10, through whose channel lOa it passes, after which it runs through aligned channel 37c of the second jaw 37, thus crossing over itself. Beyond this point, the free end of the thread is gripped by a clamp 31 actuated by a jack (not shown) which clamp, cooperating with supply reel 8 and its pulley 30, draws binding thread F around the coil. In the following moment, jack 48 is activated and the frustoconical head 50 of its rod 49 engages between heels 37a, 38a of jaws 37, 38 to bring together the front gipping jaws of the latter so that they securely retain thread F in the 20235~9 vicinity of the point at which it crosses over itself.
Shears, not represented, are then operated to cut thread F on the pulley 30 side, thus forming a flexible bond whose two crossed lengths Fl, F2 (Figure 6) are immobilized in twisting head 32.
Then, after tensioning clamp 31 has been withdrawn and thread guide jaws 10, 11 have parted as a result of the retraction of rod 28 of jack 29, each of the twisting heads 32 is rotated by hydraulic motor 47, via the gearing formed by central toothed wheel 46 and pinions 45 and 44. During this rotation, each twisting head is screwed into its nut 42 and, sliding in the associated pinion 44, is given simultaneously a forward translation movement. This dual movement undergone by twisting head 32 enables it to effect a twist joint T that is as close as possible to coil C for binding (see Figure 7), which is, in practice, at a distance of approximately 3 cm therefrom. Flexible bond F is thus closely fitted around coil C without any risk of subsequent slippage.
Once twist joint T has been effected, the pressure is relieved in jack 48, frustoconical headed rod 49 is retracted by a return spring 51 internal to this jack so that jaws 37, 38 open, the direction of rotation of twisting head 32 is reversed and the head is thus translated rearwards. Filament guide jaws 10, 11 are then brought towards each other into work position by jack 29, and a new binding cycle can then commence.
AND BINDER EQUIPPED WITH SUCH DEVICES, IN PARTICULAR FOR BINDING COILS OF WIRE
The present invention relates to a binding device.
The device has a frame associated with a supporting structure, to carry the item to be bound. There are means for placing a flexible bond around the item comprising guide members for bringing its two end lengths to cross each other. A head for twisting the bond is placed at the rear of the guide members and composed of a gripper mounted on the end of a rotary body.
Such binding devices are found on wire coil compacting and binding apparatus, in which they are distributed in a circle on a common support, rearwardly of the compacting unit.
One drawback of current wire coil compacting and binding apparatus is that, in each binding device, the twisting head, for constructional reasons, can only act in rotation on the flexible bond, and then at a great distance, in the order of 60 mm, from the coil of wire to be bound. While this may have no effect upon binding quality in the case of wire coils of high elasticity, which compensate for this twist after compacting, this is not the case when the wire is of increased diameter, which reduces the elasticity of the coil. The result is that the bonds around the coil are not tight enough and can slide along the coil, for example, during handling or transport. The coil may thus come undone.
The aim of the present invention is to remedy this drawback. Accordingly, the present invention is a binding device comprising a frame associated with a supporting structure for an article to be bound, means on the frame for placing a flexible bond around the article to be bound, the flexible bond including opposed end lengths, the means for placing the flexible bond comprising guide members having opposed front and rear ~
~r ends, the front ends being configured for bringing the two end lengths to cross over one another, and a twisting head for twisting the two end lengths, the twisting head being arranged at the rear of said guide members and being formed by a gripper and a rotary body, the gripper being mounted on the end of the rotary body, the binding device being characterized in that it comprises means for guiding and driving the twisting head in translation as it rotates, comprising a nut integral with the frame, a threaded portion being defined on the body of the twisting head, and being threadedly engaged with the nut such that rotation of the body generates axial movement of the body relative to both the nut and the frame, a coupling member surrounding a portion of the body such that the body is slidingly mounted in the coupling member, the coupling member being coupled to a means for ensuring its rotation, the said guide members of the flexible bond further being withdrawable in synchronism with the translation of the twisting head.
The twisting head can thus, during its rotation, advance in the direction of the wire coil to be bound, until it reaches a distance which, while it certainly still presents limitations in practice, is nonetheless sufficiently reduced (approximately halved) to ensure good quality, firm binding regardless of the elasticity of the coil of wire, even if the wire is obtained by rolling.
Advantageously, the coupling member is a toothed pinion retained around the body of the twisting head by an axially splined connection and engaging with a toothed driving wheel constituting the said rotating means.
Moreover, and according to another feature of the invention, the gripper is composed of two jaws articulated on the body of the twisting head, each being ~, ~, ~ _ 3 _ 2023599 extended, beyond its axis of articulation, by a rear heel, and further associated with a jack formed in the body with its rod pointing towards the heels of the jaws and ending in a head of a generally conical shape designed to engage between the latter, the heels of the jaws of the gripper being further urged towards one another in rest condition. There are thus provided simple means for actuating the gripper which do not, moreover, increase the overall dimensions of the binding device.
The members for guiding the flexible bond are preferably constituted by pivoting thread guide jaws crossing one another at an active position in the translation path of the twisting head and cyclically movable from the said path by swinging means.
The present invention also relates to an apparatus for binding articles of an annular shape, in particular to a wire coil compacting and binding apparatus, of the type comprising several binding subassemblies arranged in a circle on a common support. The binding subassemblies are constituted by binding devices as defined above.
In a preferred embodiment that considerably simplifies the control of the twisting heads of the different binding devices, the heads are orientated in the same direction with their axes substantially parallel to the central axis of the article to be bound and their coupling pinions engage with a common toothed driving wheel.
The present invention is illustrated, by way of example, in the drawings, wherein:
Figure 1 diagrammatically represents, in side view, a compacting and binding apparatus according to the invention;
.
4 20235~9 Figure 2 is a diagrammatic enlarged cross section along line II-II of Figure 1;
Figure 3 is a side view, in partial cross section, of a binding device according to the invention incorporated into the compacting and binding apparatus of Figures 1 and 2;
Figure 4 iæ a longitn~;nAl cross-sectional view along line IV-IV of Figure 3, of the twisting head of this binding device;
Figure 5 diagrammatically represents, in rear view, the system for controlling the different twisting heads of the bind devices of the compacting and binding apparatus;
Figures 6 and 7 are diagrams illustrating two phases in the operation of the binding device; and Figure 8 is an enlarged front view of the twisting head, in the direction of arrow A of Figure 4.
The compacting and binding apparatus shown in Figure 1 is composed of a compacting unit 1, followed by a binding unit 2. In a manner known per se, compacting unit 1 comprises a carriage 3 which, after receiving a cylindrical coil of wire for binding, formed at an upstream binding station, moves it and compresses it against an anvil 4, passing it round an axial mandrel 5 projecting in front of the anvil.
Rearwardly of anvil 4, binding unit 2 has four identical binding devices 6 which, as shown in Figure 2, are bolted at 6a, by their respective frames 7, to a face, turned towards anvil 4, of a common support 2a upon which they are arranged in a circle, at an angle of 90 to one another. Binding devices 6 are associated with respective binding thread supply reels 8. Devices 6 have a main work axis X parallel with axis Y of mandrel 5 and positioned in the prolongation of the wire coil reception space, defined between the latter and a corresponding lateral arm 9 that also projects in front of anvil 4.
The structure of one of binding devices 6, which is identical in all respects with that of the other three, will now be described with reference to Figures 3 and 4.
Figure 3 shows on the front face of the binding device, two thread guide jaws, 10, 11, slightly offset in a direction perpendicular to the plane of the drawing.
These thread guide jaws are provided with corresponding channels 10a, lla converging with one another towards anvil 4 until they cross. In addition, each thread guide jaw 10 or 11 is extended at the rear by a corresponding support arm 12 or 13 articulated at 14 or 15 on frame 7 about axes that are parallel with one another and perpendicular to the main axis X of the device. On each of these arms 12, 13, there is further articulated, at 16 and 17, a link 18, 19 - a long one for thread guide 10 and a short one for thread guide 11. The two links, 18, 19, point towards central axis Y of binding unit 2 and are articulated at 20 and 21 on a rocking lever 22, which is itself supported at its centre by a pin 23 pivoting in frame 7. At the rear of this pin 23, lever 22 has a protuberance 24 the end of which articulates on a pin 25 blocked between two circular flanges 26, 27 formed at the end of rod 28 of a jack 29 borne by support 2a. This jack 29, which is centered on the Y axis of the binding unit 2, is common to the four binding devices 6.
Consequently, when it is extended, it places and maintains the wire guide jaws 10, 11 of each device 6 in their active position as in Figure 3, via the respective mechanisms constituted by rocking lever 22 and links 18, 19 .
20235~9 Just behind the two thread guide jaws 10, 11 is located a twisting head 32, which will be described with reference to Figures 3, 4 and 8.
The rear portion of this twisting head 32 is a rotary body 33, retained by bearings 34, 35 having seals 34a, 35a, inside a bore 36 of frame 7, provided between the articulating arms of jaws 10, 11. Beyond front bearing 34, an extension 33a of body 33 bears a gripper 32a formed by two jaws 37, 38 articulated about parallel axes 39, 40 perpendicular to the axes of articulation 14, 15 of arms 12, 13 of the thread guide jaws. In their rest position represented in Figure 4, these jaws, 37, 38, are held slightly apart by return springs, not shown, acting between heels 37a, 38a, prolonging them beyond their axes of articulation 39, 40.
From Figure 3, it can further be seen that jaws 37, 38 have a rectangular shape so as to be housed, with minimum clearance, in a cut out portion 52 of matching shape provided in the rear face of the thread guide jaws 10, 11. Figures 3, 4 and 8 also show that, on their front faces and along their free edges 37b, 38b, jaws 37, 38 are each provided with an open channel, 37c or 38c.
These two channels slope to converge on the X axis of the twisting head in order so that, as shown in Figure 8, they are positioned respectively in alignment with channels lOa, lla of thread guide jaws 10, 11, when the two jaws 37, 38 are in their open position, shown in Figure 4.
Figure 4 further shows that, in its mid position, rotary body 33 of twisting head 32 has an externally threaded section 41 which is screwed into a fixed nut 42 integral, via a screw 42a, with the wall of bore 36. At its rear end, body 33 carries, via one or more axial splines 43, a pinion 44 (Figure 3). As can be seen from .~
_ 7 _ 2023599 Figure 2, as well as from the diagrammatic view of Figure 5, the four pinions 44 of twisting heads 32 of the four binding devices 6 engage, through intermediate pinions 45, with a common central toothed wheel 46 rotated by a hydraulic motor 47.
In the rotary body 33 of the twisting head, there is further provided a cavity, 48, of a hydraulic jack, whose rod 49, centered on the X axis, ends in a frustoconical head 50 turned towards the gap between heels 37a, 38a of the two jaws 37, 38.
The operation of binding unit 2 equipped with the above described binding devices 6 will now be explained.
With each of the binding devices 6 in the condition illustrated in Figure 4, a thin, flexible continuous binding thread F provided from one of the supply reels 8 and drawn by a motor driven pulley 30 mounted on frame 7 with its counter tension roller 30a engages in channel 38c of jaw 38 of the twisting head, and then in channel lla in alignment with thread guide jaw 11 so as to pass, upon emerging therefrom, round a section of the coil following guide grooves (not shown) formed in an opening of anvil 4, along the corresponding arm 9 and along the mandrel 5. The binding thread then returns, arriving at the second thread guide 10, through whose channel lOa it passes, after which it runs through aligned channel 37c of the second jaw 37, thus crossing over itself. Beyond this point, the free end of the thread is gripped by a clamp 31 actuated by a jack (not shown) which clamp, cooperating with supply reel 8 and its pulley 30, draws binding thread F around the coil. In the following moment, jack 48 is activated and the frustoconical head 50 of its rod 49 engages between heels 37a, 38a of jaws 37, 38 to bring together the front gipping jaws of the latter so that they securely retain thread F in the 20235~9 vicinity of the point at which it crosses over itself.
Shears, not represented, are then operated to cut thread F on the pulley 30 side, thus forming a flexible bond whose two crossed lengths Fl, F2 (Figure 6) are immobilized in twisting head 32.
Then, after tensioning clamp 31 has been withdrawn and thread guide jaws 10, 11 have parted as a result of the retraction of rod 28 of jack 29, each of the twisting heads 32 is rotated by hydraulic motor 47, via the gearing formed by central toothed wheel 46 and pinions 45 and 44. During this rotation, each twisting head is screwed into its nut 42 and, sliding in the associated pinion 44, is given simultaneously a forward translation movement. This dual movement undergone by twisting head 32 enables it to effect a twist joint T that is as close as possible to coil C for binding (see Figure 7), which is, in practice, at a distance of approximately 3 cm therefrom. Flexible bond F is thus closely fitted around coil C without any risk of subsequent slippage.
Once twist joint T has been effected, the pressure is relieved in jack 48, frustoconical headed rod 49 is retracted by a return spring 51 internal to this jack so that jaws 37, 38 open, the direction of rotation of twisting head 32 is reversed and the head is thus translated rearwards. Filament guide jaws 10, 11 are then brought towards each other into work position by jack 29, and a new binding cycle can then commence.
Claims (6)
1. Binding device comprising, a frame associated with a supporting structure for an article to be bound, means on the frame for placing a flexible bond around the article to be bound, the flexible bond including opposed end lengths, the means for placing the flexible bond comprising guide members having opposed front and rear ends, the front ends being configured for bringing the two end lengths to cross over one another, and a twisting head for twisting the two end lengths, the twisting head being arranged at the rear of said guide members and being formed by a gripper and a rotary body, the gripper being mounted on the end of the rotary body, the binding device being characterized in that it comprises means for guiding and driving the twisting head in translation as it rotates, comprising a nut integral with the frame, a threaded portion being defined on the body of the twisting head, and being threadedly engaged with the nut such that rotation of the body generates axial movement of the body relative to both the nut and the frame, a coupling member surrounding a portion of the body such that the body is slidingly mounted in the coupling member, the coupling member being coupled to a means for ensuring its rotation, said guide members of the flexible bond further being withdrawable in synchronism with the translation of the twisting head.
2. Binding device according to claim 1, characterized in that the body of the twisting head includes at least one axial spline and that said coupling member is a toothed pinion retained around the body of the twisting head by a connection with the axial spline and engaging with a toothed driving wheel constituting said means for ensuring rotation.
3. Binding device according to claim 2, characterized in that the gripper is composed of two jaws articulated on the body of the twisting head, each extended beyond its axis of articulation, by a rear heel, and is further associated with a jack formed in the body with its rod pointing towards the heels of the jaws and ending in a head of a generally conical shape designed to engage between the latter, the heels of the gripper jaws being further biased towards one another in rest condition.
4. Binding device according to claim 3, characterized in that said members for guiding the flexible bond comprise thread guide jaws, which pivot, crossing over each other in active position in the translation path of the twisting head and cyclically withdrawable from the latter by swinging means.
5. A wire coil compacting and binding apparatus comprising several binding subassemblies arranged in a circle on a common support, characterized in that the binding subassemblies each are constituted by a binding device according to claim 2.
6. An apparatus according to claim 5, characterized in that the twisting heads of the binding devices are oriented in the same direction with their axes substantially parallel to the central axis of the article to be bound and their coupling pinions engage with a common driving gear wheel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8911062 | 1989-08-21 | ||
| FR8911062A FR2650989B1 (en) | 1989-08-21 | 1989-08-21 | BINDING DEVICE WITH IMPROVED TWISTING HEAD AND BINDER EQUIPPED WITH SUCH DEVICES, PARTICULARLY FOR BINDING WIRE CROWNS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2023599A1 CA2023599A1 (en) | 1991-02-22 |
| CA2023599C true CA2023599C (en) | 1995-07-11 |
Family
ID=9384813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002023599A Expired - Fee Related CA2023599C (en) | 1989-08-21 | 1990-08-20 | Binding device with improved twisting head and binder equipped with such devices, in particular for binding coils of wire |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5088394A (en) |
| EP (1) | EP0414599B1 (en) |
| CN (1) | CN1018441B (en) |
| AT (1) | ATE100402T1 (en) |
| CA (1) | CA2023599C (en) |
| DE (1) | DE69006137T2 (en) |
| ES (1) | ES2049441T3 (en) |
| FR (1) | FR2650989B1 (en) |
| RU (1) | RU1813055C (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152214A (en) * | 1991-10-10 | 1992-10-06 | Nordberg Henry T | Tire compacting machine |
| MY130074A (en) * | 1992-02-28 | 2007-05-31 | Bentac Co Ltd | Method and apparatus for tying one more articles |
| EP0994062B1 (en) * | 1998-10-16 | 2003-05-07 | Maillefer S.A. | Apparatus for holding the free end and unloading a coil of an elongated element |
| JP2002284111A (en) * | 2001-03-22 | 2002-10-03 | Shino Tange | Binding machine |
| US20040040450A1 (en) * | 2002-09-04 | 2004-03-04 | Peroni Drew B. | Wire coil winding apparatus and method |
| CN102826249B (en) * | 2012-09-18 | 2015-10-07 | 昆山古鳌电子机械有限公司 | Bundling device tied note band pilot tape duct device |
| CN104542176B (en) * | 2015-01-14 | 2018-12-21 | 台山市四九镇五金制品厂 | A kind of semi-automatic iron wire connection equipment |
| CN104925294B (en) * | 2015-06-23 | 2017-12-26 | 天津市福鼎机电设备有限公司 | One kind screws bundling manipulator |
| CN104925293B (en) * | 2015-06-23 | 2017-12-26 | 天津市福鼎机电设备有限公司 | Full-automatic mechanical hand reinforcing bar-binding machine |
| CN110259140B (en) * | 2019-06-11 | 2021-06-18 | 中国建筑第八工程局有限公司 | Reinforcing bar binding equipment |
| CN110683096B (en) * | 2019-10-25 | 2021-05-11 | 台州宝诚科技服务有限公司 | Automatic bundling processing equipment for processing based on electronic connecting line |
| CN111992638B (en) * | 2020-08-31 | 2023-02-17 | 安庆海威尔机械有限公司 | Wire folding device for piston ring |
| CN112009755B (en) * | 2020-08-31 | 2021-12-10 | 安庆海威尔机械有限公司 | Wire binding device for piston ring |
| CN112357184A (en) * | 2020-10-14 | 2021-02-12 | 吕群 | Automatic equipment is tied up in metaplasia production |
| CN117208295B (en) * | 2023-11-08 | 2024-01-30 | 成都优拓优联科技有限公司 | Automatic bundling device and method for hot-rolled seamless steel pipes |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2674181A (en) * | 1950-08-25 | 1954-04-06 | Melvin P Jones | Coil bundling apparatus |
| FR2174751B1 (en) * | 1972-03-09 | 1974-08-02 | Mauvernay Centr Rech | |
| FR2186000A5 (en) * | 1972-05-23 | 1974-01-04 | Elineau Hubert | |
| FR2293364A1 (en) * | 1974-12-06 | 1976-07-02 | Botalam | CROWN COMPACTION AND BINDING MACHINE |
| FR2381664A1 (en) * | 1977-02-25 | 1978-09-22 | Botalam | TWISTING DEVICE FOR MACHINE BINDING PACKAGES WITH A METAL WIRE |
| DE3247147A1 (en) * | 1982-01-25 | 1983-07-28 | Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf | DEVICE FOR REVERSING BALES IN A BALING PRESS |
-
1989
- 1989-08-21 FR FR8911062A patent/FR2650989B1/en not_active Expired - Fee Related
-
1990
- 1990-08-20 RU SU904830897A patent/RU1813055C/en active
- 1990-08-20 CA CA002023599A patent/CA2023599C/en not_active Expired - Fee Related
- 1990-08-20 US US07/569,821 patent/US5088394A/en not_active Expired - Fee Related
- 1990-08-20 DE DE69006137T patent/DE69006137T2/en not_active Expired - Fee Related
- 1990-08-20 ES ES90402314T patent/ES2049441T3/en not_active Expired - Lifetime
- 1990-08-20 AT AT90402314T patent/ATE100402T1/en not_active IP Right Cessation
- 1990-08-20 EP EP90402314A patent/EP0414599B1/en not_active Expired - Lifetime
- 1990-08-21 CN CN90107926A patent/CN1018441B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ATE100402T1 (en) | 1994-02-15 |
| DE69006137T2 (en) | 1994-07-28 |
| FR2650989A1 (en) | 1991-02-22 |
| RU1813055C (en) | 1993-04-30 |
| CN1050165A (en) | 1991-03-27 |
| FR2650989B1 (en) | 1991-11-29 |
| CN1018441B (en) | 1992-09-30 |
| DE69006137D1 (en) | 1994-03-03 |
| EP0414599A1 (en) | 1991-02-27 |
| US5088394A (en) | 1992-02-18 |
| EP0414599B1 (en) | 1994-01-19 |
| ES2049441T3 (en) | 1994-04-16 |
| CA2023599A1 (en) | 1991-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |